Wiki source code of Using JRebel (previously called JavaRebel) with WOLips
Version 23.1 by Kieran Kelleher on 2011/07/25 20:09
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23.1 | 1 | JRebel is a tool from [[ZeroTurnaround>>http://www.zeroturnaround.com]]. |
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13.1 | 2 | |
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17.1 | 3 | It is a java library that makes it possible to change java code while running a project in WOLips and see the results without having to restart. It is a great timesaver. |
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13.1 | 5 | === How to install and use JRebel === |
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19.1 | 7 | * Get a free 30-day license, a open source developer license or a paid license from [[ZeroTurnaround>>http://www.zeroturnaround.com]] |
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21.1 | 8 | * Put the license file (jrebel.lic) into a directory named .jrebel in your home directory. ( /.jrebel/jrebel.lic ) |
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19.1 | 9 | * Get the JRebel plugin. Go to Eclipse->Preferences->Available Software Sites, add [[http://www.zeroturnaround.com/update-site/]] |
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13.1 | 10 | |
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15.1 | 11 | [[image:AddZeroTurnAround.png]] |
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13.1 | 12 | |
| 13 | * Download the Jrebel Eclipse Integration and perhaps the JRebel Eclipse Debugger Integration from install new Software | ||
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15.1 | 15 | [[image:InstallSoftware.png]] |
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13.1 | 16 | |
| 17 | * Make sure you have checked the JRebel Plugin in WOLips if you download the newest version. | ||
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15.1 | 19 | [[image:UpdateWOLipsWithJRebel.png]] |
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13.1 | 20 | |
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21.1 | 21 | * Restart Eclipse. You will now have a Jrebel preference item in your eclipse preferences and JRebel is ready for use with your projects. |
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13.1 | 22 | |
| 23 | You have now installed and setup the stuff that WOLips needs to know about the location of JRebel.jar. | ||
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| 25 | == How do you use it? == | ||
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| 27 | Well that has become very simple since the inclusion of Quinton Dolan's JRebel plugin in WOLips. | ||
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| 29 | For a project in which want to use jrebel to change java code while running, go to the run configuration of the project, under the contextual menu Run As->Run Configurations. | ||
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| 31 | In the Run Configuration of a WOApplication you will notice an extra Tab, called JRebel. | ||
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| 33 | Select the tab, and check the check boxes to enable JRebel Agent and (eventually) Enable debug logging. | ||
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15.1 | 35 | [[image:EnableJRebel.png]] |
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13.1 | 36 | |
| 37 | Start you project from the Run Configuration. | ||
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| 39 | Suddenly, you will get messages about jrebel being loaded, and some extra information about what settings are available as extra arguments. | ||
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| 41 | {{info}} | ||
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15.1 | 42 | |
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13.1 | 43 | If you get out of memory error with respect to "Perm Gen space", just allocate more Perm Gen memory in command line launch args in your launch configuration. For example: |
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15.1 | 45 | \-XX:MaxPermSize=384m |
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13.1 | 47 | {{/info}} |
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| 49 | Start changing your java code on the fly: watch and start saving time. | ||
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15.1 | 51 | [[image:JRebelWOLipsLog.png]] |
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13.1 | 52 | |
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15.1 | 53 | * Profit (for the europeans: Extra Time Off) |
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23.1 | 54 | |
| 55 | == More information == | ||
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| 57 | [[Old screencast from David Avendasora about using JRebel with Eclipse 3.4>>http://www.wocommunity.org/podcasts/WOJavaRebel_Setup.mov]]. |